Gearbox solutionThe solution to the transmission's setback varied according to the cause of the setback:
1. * * Electromagnetic valve related problems **
- If the electromagnetic valve is abnormal and it is because the transmission oil has deteriorated and the impurities produced by the wear of the valve body parts cause the electromagnetic valve to be unable to regulate the oil pressure normally, the transmission oil must first be checked. If the oil quality has deteriorated, the transmission oil that meets the requirements of the vehicle needs to be replaced. For the electromagnetic valve affected by impurities, the impurities could be removed by cleaning the electromagnetic valve and the valve body, so that the electromagnetic valve could regulate the oil pressure normally.
- If the electromagnetic valve was damaged due to the failure rate of its own equipment, it would usually need to be replaced.
2. * * Damage to the valve body and valve passage **
- When the wear and tear of the valve passage inside the valve body is not too serious, but the impurities caused by the wear and tear interfere with the abnormal signal of the electromagnetic valve components, the normal operation of the electromagnetic valve can be restored through professional maintenance.
- If the internal valve passage of the valve body is seriously worn, it will seriously affect the normal control of the transmission oil pressure, and the stagnation phenomenon will be more serious. In this case, the valve body will generally be replaced or remanufactured.
3. * * A setback caused by driving habits **
- The driver needed to improve his driving skills to match the gear with the speed. For example, when shifting gears with manual transmission, the timing of shifting gears should be grasped to avoid shifting gears too early or too late; automatic transmission vehicles should also control the accelerator and brakes reasonably according to the road conditions to avoid sudden acceleration and sudden braking, which may cause frequent shifting of the transmission.
4. * * Transmission oil quality problem **
- Check the quality, color, and level of the transmission oil regularly. If the oil quality is found to be contaminated, deteriorated, or has not been replaced for a long time (according to the replacement period specified in the vehicle manual), the transmission oil should be replaced in time and the transmission oil that meets the requirements of the vehicle specifications should be used.
5. * * Shifting control system problem **
- In the case of damage to the transmission control mechanism, professional maintenance personnel were required to repair or replace the damaged parts.
- If the problem was caused by the program not being upgraded, the transmission control program could be upgraded at the 4S shop of the car brand or a professional maintenance organization to improve the shifting logic.
6. * * Stumps caused by high temperature **
- If the vehicle is in a high temperature environment for a long time (such as driving at high speed for a long time in hot weather or climbing mountains frequently), stop and rest after driving for a period of time to let the transmission dissipate heat. At the same time, it was necessary to ensure that the cooling system of the transmission was working properly, such as checking whether the cooling fan, the cooler, and other components were operating normally.
In addition, for some automatic transmissions, there was a method to reset the transmission (applicable to some models), which was to turn on the ignition switch in the cold state, then step on the accelerator pedal to the bottom, turn off the ignition switch, and remove the foot from the accelerator pedal. At this time, the transmission may enter the reset state (there may be an abnormal sound to prove that the reset was successful). However, for some old cars (such as the BMW 730's 6HP 21 transmission and other older cars with mechanical control), if there was a setback, it might be due to the serious wear of various components such as friction plates, copper cup stones, rubber, etc. Only the replacement of individual components may not be able to completely solve the problem. The entire execution system and control system needed to be thoroughly repaired.
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CVT stepless gearboxCVs (Continually Variable transmissions), also known as continuously variable transmissions, infinitely variable transmissions, infinitely variable transmissions, etc., were a type of transmission that could achieve continuous changes in the transmission ratio. Its working principle was to use two steel wheels to clamp the steel belt to complete the work of speed change and rotation. Since there was no fixed gear, it could achieve infinitely variable speed. There was no sense of hesitation during the speed change process, and the power would not be interrupted. The ride was better.
The CVS did not have a fixed transmission ratio, but it could provide the engine with the best speed ratio to drive the vehicle. Moreover, the transmission ratio range was wide, and it could use a lower speed to achieve fuel economy at high speeds. It also had the characteristics of stable power transmission, simple and compact structure, low cost, and good fuel economy. It was one of the more mainstream automatic transmissions today.
In the production and application of different manufacturers, CVs would simulate gears to improve driving pleasure. However, it also had some shortcomings. For example, when the early CVs used rubber belt transmission, there were problems such as limited power, unstable clutch operation, and large energy loss. Later, the practical metal belt CVs had the advantages of fewer parts, small size, light weight, high transmission efficiency, and low fuel consumption, but the transmission belt was easily damaged and could not withstand large loads.
In addition, there was also an E-CVS (Electronically Controlled Continuous Transmission). Although it had a CVS in its name, in principle, it had nothing to do with the CVS that used steel belts and cone wheels. It was a system with infinitely variable speed capability, mainly used in hybrid vehicles. The principle and structure of the E-CVS of different car companies may be different. For example, the E-CVS of Byd and Toyota had different working logic and implementation methods.
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Winning 2.3 Gearbox Stumps SeriouslyIf the Zhisheng 2.3 transmission suffers a serious setback, it can be solved in the following ways:
1. ** Judging the situation of the gear **
- If it was just a single gear, the accelerator would be increased when shifting gears to maintain the speed between 2200 - 2500 mph. It might be caused by the speed and speed of the gear shift not matching, and the friction plate was not cleanly separated.
- If all the files failed, a comprehensive investigation was needed.
2. ** Check related components and systems **
- ** Transmission oil **: Check if the transmission oil is suitable and if the quality is poor. Change the high-quality and suitable oil regularly. If you don't change the transmission gear oil for a long time, it will cause the oil to deteriorate or the oil path to be blocked. Therefore, it must be changed regularly.
- ** Transmission filter **: Check the filter. If it is dirty, clean or replace it to ensure smooth oil flow.
- ** Clutch components **: Check the clutch plate, pressure plate, and flywheels. If there is any wear or damage, replace them in time.
- ** sensor **: ensure that the sensor is working normally without damage or malfunction.
- ** Computer System **: Check the computer system and perform necessary software updates or fault diagnosis.
- ** Body part **: When the oil temperature of the automatic transmission is too high, stubborn dirt and impurities will appear, causing the valve body to be blocked. The operation of the electromagnetic valve will not be smooth, and the oil pressure will not be adjusted according to the order, resulting in a setback. Check whether the temperature of the transmission exceeds the normal value. If it is abnormal, check and clean the accessories of the cooling system. If the transmission oil is too dirty, it will cause the electromagnetic valve in the electric control system to be blocked and stuck. In this case, you can completely change the transmission oil first. If the oil is still stuck after changing the oil, you need to repair and replace the electromagnetic valve body in the electric box. You don't need to replace all of them. Find the problematic electromagnetic valve and replace one or more of them separately.
- ** Other aspects **: Pay attention to driving habits and avoid sudden acceleration, sudden braking, and rough driving; check the temperature and heat dissipation system of the transmission. Poor heat dissipation will damage the performance of the oil and affect the normal operation, causing the gear shift to be delayed; the intervention of the energy recovery system, the intervention of the turbine, and the computer gear shift logic may also cause the gear shift to be delayed, such as sudden acceleration or acceleration after braking, frequent gear shifting at low speeds, etc.
If you can't solve it yourself, you must find a professional repairman to conduct a comprehensive inspection of the vehicle to determine the root cause and carry out appropriate repair or replacement.
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Cutting size Table of Auger BladesThe following are some data related to the size of the blade:
|Outer diameter of the spiral blade| Inner diameter of twisted dragon blade| screw pitch| length of outer spiral| Inner Spiral length| external diameter| inner diameter| cut angle|
|----|----|----|----|----|----|----|----|
|200|55|200|659.38|264.30|242.00|97.00|47.77|
|300|60|300|989.07|354.30|373.96|133.96|56.92|
|160|50|160|527.51|224.22|191.32|81.32|44.05|
|200|50|160|648.37|224.22|229.29|79.29|35.97|
In addition, if the outer diameter D, shaft diameter d, pitch s, blade thickness 6 and other dimensions of the screw were known, the cutting size could be calculated through a specific formula. For example, the diameter of the inner spiral line of the processed blade is d1 ="(d2 +(s/3.14) 2), and the diameter of the outer spiral line of the processed blade is D1 = d1+D - d. When the diameter of the spiral exceeded 600mm and the thickness of the blade was greater than 14mm, there was no accurate formula for the cutting size because the spiral was an undeveloped curved surface. It was also necessary to consider factors such as the outer diameter and inner diameter.
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Qushou Gearbox Oil 100,000 km ChangeThe oil replacement cycle of the transmission of the Japanese Qashou Qashou was 100,000 kilometers, and the replacement capacity was 8 liters. There were several methods to change the transmission oil, such as gravity replacement, circulation machine replacement, and removing the oil pan to change the oil. Gravity replacement operation was simple and common, but it could not completely clean the transmission oil. Circulation machine replacement could clean the oil circuit more cleanly, but it required professional equipment and was more expensive. Removing the oil pan to change the oil could clean from the root and clean the transmission oil filter, but the working hours increased. When changing the oil, you must use the automatic transmission oil specified by the manufacturer to avoid affecting the performance of the automatic transmission.
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The Reason for the Strange Shift of Passat GearboxThe reason for the abnormal sound of the Passat transmission shifting was as follows:
1. Driving computer adjustment: Volkswagen had readjusted the new driving computer, resulting in the slower pace and speed of shifting gears than before, which may be one of the reasons for the strange noise.
2. Driving habits: When using the DSG transmission, if the owner suddenly speeds up or brakes, it is easy to cause the transmission to heat up, excessive wear and tear of the gears, locking and other accidents, resulting in abnormal transmission noise during driving. However, some noises from the DSG reversing were normal.
3. Internal parts wear: If the transmission noise is found to be very loud, it may be due to the abnormal wear of the reverse gear or clutch assembly inside the transmission. In serious cases, it may be a malfunction of the transmission assembly.
4. Dirt and impurity accumulation: The stubborn dirt and impurities inside the automatic transmission, especially the accumulation of dirt and impurities inside the valve body, form a blockage, resulting in the inability to effectively adjust the oil pressure, resulting in collisions, collisions, slipping, and other problems. It will also produce abnormal sounds.
5. Transmission high temperature: According to the data of the Automatic Transmission Repair Association," more than 90% of automatic transmission failures are caused by excessive heat." The high temperature of the transmission may also cause abnormal shifting sounds.
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Cvette Gearbox Stumps at High SpeedThere may be the following reasons for the CVS transmission's failure at high speeds:
1. ** Steel belt related factors **
- The CVS was driven by friction with a steel belt. When shifting gears, if the speed ratio of the input shaft and the output shaft was abnormal (such as when an increase was considered to be slipping), the oil cylinder would clamp the steel belt. In the process of shifting gears, because there was a sense of lag established by calculating the oil pressure of the electromagnetic valve, it could not immediately enter the full transmission state like the full transmission of the gears, which might cause a short-term slip. From slipping to not slipping, there would be a change in speed, resulting in a slight setback.
- As it was used, the steel belt might wear out and affect its normal transmission, which might also cause a setback. Moreover, the CVS steel belt had a limited capacity to withstand the force of the moment. Under certain conditions of high-speed driving, if the force of the moment exceeded the bearing range of the steel belt, an abnormality might occur and cause a setback.
2. ** Engine related factors **
- If the engine had serious carbon pollution, when driving at high speed, the load of the first gear would increase, and the cylinder might have a slight fire phenomenon. This was not a problem with the transmission, but a cylinder of the engine had poor work, causing the angular speed of the output end of the crank to be different in unit time, causing the car to stumble or crash.
3. ** Other factors **
- If the transmission oil is not changed regularly, it may affect the normal operation of the transmission, resulting in failure. In addition, the friction plates in the Audi CLV transmission, when used to a certain extent, the gap exceeded the standard range, or the relevant pressure could not be sealed, etc., would also bring a series of phenomena such as starting vibration and stumbling. Moreover, in the overall electronic control system of the vehicle, the engine and the transmission were a matching whole. The hardware and software of the two were interconnected. Even if the CVS itself was theoretically smooth, if the software was not well qualified, it could also cause a setback when driving at high speeds.
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